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Thank you for visiting the website of Main Street Pediatric Dentistry and Orthodontics, the office of Dr. Margaret Santiago. We believe every child deserves to have a beautiful smile! Helping infants, young children and adolescents achieve optimum oral health is our passion. We are conveniently located in Downtown Pleasanton, at 55 West Angela Street.

Our mission is to be a provider of high quality pediatric dentistry and orthodontics.  We are dedicated to comprehensive, conservative care through patient education in a comfortable and fun environment for our patients.